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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <script>
        class Star {
            constructor(uname, fans) {
                console.log('我被调用了');
                this.uname = uname
                this.fans = fans
                this.sing = function () {
                    console.log('唱歌');
                }
            }

            dance () {
                console.log('背带裤');
            }

            rap () {
                console.log('只因你太美');
            }
        }
        
        console.log(Star.prototype);

        const cxk = new Star('ikun', 'xiaoheizi')
        console.log(cxk);
        cxk.dance()
        cxk.rap()
    </script>
</body>

</html>